Hi, you are not the only one to have the problem.

We do as well and with a smaller environment in terms of physical hosts ( only 3).

I did not engage with support yet because the size has gone back under 90% on its own but it keep popping up any other day.

We have constanst sr.scan as well which in our case last for a long time and we have other issues as well at running task like starting or stopping VM but we haven't figured why yet.

Hello, we have a pool of 3 hosts with XOSTOR and we are having various performance issues related to tasks like start/stop VMs, VM migrations or similar which according to Vates support are down to the task waiting for Sr.scan to be completed.

I can see sr.scan running all the time and some of them takes around 4 / 5 minutes...

the XOSTOR storage is around 27Tb and store about 107 VMs base disk + same amount of snapshots + what I think is the current changes for each of them for a total of 348 disks.

What your environments look likes? how long your sr.scans takes and most importantly do you have problems at start/stopping and migrating VMs?

For instance when we migrate VMs, the VMs freeze for about 3 / 4 minutes just before re-attaching the VDI on the target host and according to support is due to the sr.scan.